NOT your typical mobo dilemma. 3DMAX rig. some unexpected real life issues. Help me plz!

I'll try to keep it as short and informative as possible.
I live in Eastern Europe and our motherboard market and support service is a bit different than a standard Western European or USA market(I'll get back to this later on)
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I'm trying to build a rig strictly for 3D modeling and rendering. I started wanting to buy AMD bulldozer and used GPU and after some recommendations I ended up buying i7 2700k and New EVGA GTX 570 HD therefore stretching my budget quite a bit. I'm planning on using CPU rendering for another 4-8 months and switching gradually to GPU rendering. So what I need from my potential MOBO is to withstand overclocking at a level of 4.5(maybe 4.7)GHz for the next 8 months and I hope it could serve me at least 3 years on stock CPU speed after that. I'm also planning on getting another GPU in near future so support of at least 2x pci-e 2.0 8x is mandatory. I also planned to get SSD system device but figured I could equip that after fulfilling most crucial points.

So after a week of searches and reading my choices are (please take into consideration every aspect of following options):

Asus p8z77-m PRO. Available locally and potential warranty claim procedure should be fairly standard and professional. (As I leaning the most towards this option as a price point reference) Price: 100%

Asus Maximus IV Gene-Z. Available from a dealer in my country (shop has been functioning for couple of months though). I can visually assess the state of motherboard before buying, I'll get warranty not sure if it will count for anything. Price 113%

MSI Z77-GD55 - Available locally and potential warranty claim procedure should be fairly standard and professional. Price: 105%

ASRock Extreme4 GEN 3 - Available locally and potential warranty claim procedure should be fairly standard and professional. (Don't really like that 1 year shorter warranty) Price: 113%

Gigabyte G1. Sniper M3 - Available locally and potential warranty claim review should be fairly standard and professional. (Over my already streached budget, will only consider if any of the other options are not worth it) Price: 120%

ASUS P8P67 Evo Rev 3.0 - Available in Germany. Warranty and support should be ok (shipping in such case, however, would add another 20% to my Price) Price - 101% (shipped)

ASUS P8P67 Deluxe Rev 3.0 - Available in Germany. Warranty and support should be ok (shipping in such case, however, would add another 20% to my Price) Price - 113% (shipped)

Sapphire P67 Pure Black - Available locally and potential warranty claim procedure should be fairly standard and professional. Price: 90%
(Did they improve BIOS? Like 4xPCI-E, poor performance in benchmarks and reviews)

ASRocks P67 and Z68 are expensive and Z77 boards are poor quality.

Please do not post things like "M4G all the way" just because It's a great Motherboard (I DO know that) but please take all the circumstances into account.
Thanks.

P.S. I'm aware of difference in sizes of those boards and the fact that some are mATX and other are ATX mobos.

Thank you for a your lightning quick reply.
Older motherboards hardly lose any value here. The cheapest M4G I can get locally is 172% of P8Z77-m PRO Price and that's wayyy too much for me. I can get M5G for 163% of M-PRO and that's way too much for me as well. The M4G I listed is from the shop about 400km(250 miles) away so it will be shipped. I can pay when for it when I get it so I'll be able to see if everything is ok and I'm not being hustled. Warranty might be different story though. Do M4Gs do decent in reliability department?

My PSU won't handle 2x 570 right now as it is only 600W. I'm getting new one based upon pci-e on new mobo. I will then decide whether I'll get 800W for 2 GPU or 1050W for 3.

EDIT: IV GENE-Z is on Z68 and that should be ok for my Sandy Bridge i7, or isn't it? It might not be GEN3 (forgot to ask) but I doubt PCIE 2.0 8x will bottleneck 570.
Edited by Luminati - 11/4/12 at 6:49am

Yeah, I've beat you to it. Already checked my desired setup. Awesome stuff. I was wondering though: 1. the amount you get is maximal load? 2. Does size of Gddram matters in consumptions? I have 570 HD which is 2.5 GB instead of regular 1.25 and I could only pick standard 570 but in 8800 gts there were 3 memory options.

In my case I wouldn't be suprised if I went with the smallest possible (I still have plenty to buy:)) although I was told 50-60% load is the "optimum" for PSUs . I've checked my current setup and unfortunately adding another gpu makes my rig go over 650W.;(

What I don't like about msi boards i the lack of overclocking using offset. Which would make maintaining stability at 4.7GHz bit tougher. Plus I've read that DrMOS tends to catch a smoke without a reason and I haven't had any MSI product my whole life. I never had any problems with gigabyte's and asus' products so I'm bit biased.